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Raspberry Pi Pico Bit-Bangs 100 Mbit/S Ethernet

(www.elektormagazine.com)
263 points chaosprint | 2 comments | 29 Oct 25 23:21 UTC | HN request time: 0.001s | source
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ChuckMcM ◴[29 Oct 25 23:43 UTC] No.45754594[source]▶
Fun stuff. You kids don't know how lucky you are to have really capable MCU's for just a few bucks. :-)

It is kind of the ultimate "not a TOE[1]" example yet.

[1] TOE or TCP Offload Engine was a dedicated peripheral card that implements both the layer 1 (MAC), layer 2 (Ethernet), and layer 3 (IP) functions as a co-processing element to relieve the 'main' CPU the burden of doing all that.

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nine_k ◴[30 Oct 25 02:32 UTC] No.45755798[source]▶
Don't modern NICs do a lot of the same, too?
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1. tyingq ◴[30 Oct 25 04:49 UTC] No.45756543[source]▶
Sometimes it goes the other direction. PCI SSL accelerator cards were a thing for a long time before CPUs got faster, got various crypto acceleration opcodes, web servers rewrote SSL logic in ASM, etc.
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2. carlhjerpe ◴[30 Oct 25 14:14 UTC] No.45760257[source]▶
The fancy Mellanox NVIDIA Connect-X cards have kTLS support which offloads encryption to the NIC, Netflix has blogged about how they use it to send 100 Gbps encrypted traffic of a single box (Their OpenConnect infrastructure is really cool).

Old is new again :)